the world > matter > physics > atomic physics > particle physics > weak or strong force > [noun] > weak force > intermediary of weak interaction (4)
a vector boson of ‘intermediate’ mass that was postulated to exist as the quantum or intermediary of weak interactions, and is now identified with…
Particle Physics. Used to designate particles with a spin of 1; vector boson, esp. any of a group of three heavy bosons (the W± and Z0, qq.v.)…